Electrophysiological correlates of contractile change in mammalian and amphibian myocardium.
D000200:Action Potentials; D000818:Animals; D001001:Anura; D004285:Dogs; D004558:Electric Stimulation; D006321:Heart / Q000502:physiology*; D009119:Muscle Contraction / Q000502:physiology; D012146:Rest; D013997:Time Factors; D016276:Ventricular Function